activity
19972023
most citedWhy Gravitational Contraction Must be Accompanied by Emission of Radiation Both in Newtonian and Einstein Gravity

80 citations · 560 across the 64 of their papers we have counts for

collaborators
Showing 2006Show all

5 papers · 1 filter

astro-ph2006★ 18 cited

Sources of Stellar Energy, Einstein- Eddington Timescale of Gravitational Contraction and Eternally Collapsing Objects

Abhas Mitra

We point out that although conventional stars are primarily fed by burning of nuclear fuel at their cores, in a strict sense, the process of release of stored gravitational energy,…

gr-qc2006★ 14 cited

Does Pressure Increase or Decrease Active Gravitational Mass Density?

Abhas Mitra

It is known that, for a static fluid sphere, the GeneralRelativistic (GR) Effective Mass Energy Density (EMD) appears to be (rho + 3 p), where rho is the bare mass density, p is th…

gr-qc2006★ 80 cited

Why Gravitational Contraction Must be Accompanied by Emission of Radiation Both in Newtonian and Einstein Gravity

Abhas Mitra

By using virial theorem, Helmholtz and Kelvin showed that the contraction of a bound self-gravitating system must be accompanied by release of radiation energy irrespective of the…

gr-qc2006★ 34 cited

Radiation Pressure Supported Stars in Einstein Gravity: Eternally Collapsing Objects

Abhas Mitra

Even when we consider Newtonian stars, i.e., stars with surface gravitational redshift, z<< 1, it is well known that, theoretically, it is possible to have stars, supported against…

gr-qc2006★ 19 cited

A generic relation between baryonic and radiative energy densities of stars

Abhas Mitra

By using elementary astrophysical concepts, we show that for any self-luminous astrophysical object, the ratio of radiation energy density inside the body (rho_r) and the baryonic…